database/postgres
database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-05-02 11:44:50 +03:00
Code

Code review for 6190d828cd2

Browse Source 
* Fix the comment of init_dummy_sjinfo() to remove references to
  non-existing parameters 'rel1' and 'rel2'.

* Adjust consider_new_or_clause() to call init_dummy_sjinfo() to make
  up a SpecialJoinInfo for inner joins like other code sites that
  were adjusted in 6190d828cd2 to do so.

Author: Richard Guo <guofenglinux@gmail.com>
Reported-by: Richard Guo <guofenglinux@gmail.com>
Discussion: https://postgr.es/m/CAExHW5tHqEf3ASVqvFFcghYGPfpy7o3xnvhHwBGbJFMRH8KjNw@mail.gmail.com
This commit is contained in:
Amit Langote 2024-03-25 19:43:29 +09:00
parent cc0e7ebd30
commit 0f7863afef
2 changed files with 8 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/backend/optimizer/path/joinrels.c
View File

@ -656,8 +656,9 @@ join_is_legal(PlannerInfo *root, RelOptInfo *rel1, RelOptInfo *rel2,
/*
* init_dummy_sjinfo
* Populate the given SpecialJoinInfo for a plain inner join between rel1
* and rel2
* Populate the given SpecialJoinInfo for a plain inner join between the
* left and right relations specified by left_relids and right_relids
* respectively.
*
* Normally, an inner join does not have a SpecialJoinInfo node associated with
* it. But some functions involved in join planning require one containing at

21
src/backend/optimizer/util/orclauses.c
View File

@ -19,6 +19,7 @@
#include "nodes/nodeFuncs.h"
#include "optimizer/optimizer.h"
#include "optimizer/orclauses.h"
#include "optimizer/paths.h"
#include "optimizer/restrictinfo.h"
@ -325,24 +326,10 @@ consider_new_or_clause(PlannerInfo *root, RelOptInfo *rel,
* Make up a SpecialJoinInfo for JOIN_INNER semantics. (Compare
* approx_tuple_count() in costsize.c.)
*/
sjinfo.type = T_SpecialJoinInfo;
sjinfo.min_lefthand = bms_difference(join_or_rinfo->clause_relids,
init_dummy_sjinfo(&sjinfo,
bms_difference(join_or_rinfo->clause_relids,
rel->relids),
rel->relids);
sjinfo.min_righthand = rel->relids;
sjinfo.syn_lefthand = sjinfo.min_lefthand;
sjinfo.syn_righthand = sjinfo.min_righthand;
sjinfo.jointype = JOIN_INNER;
sjinfo.ojrelid = 0;
sjinfo.commute_above_l = NULL;
sjinfo.commute_above_r = NULL;
sjinfo.commute_below_l = NULL;
sjinfo.commute_below_r = NULL;
/* we don't bother trying to make the remaining fields valid */
sjinfo.lhs_strict = false;
sjinfo.semi_can_btree = false;
sjinfo.semi_can_hash = false;
sjinfo.semi_operators = NIL;
sjinfo.semi_rhs_exprs = NIL;
/* Compute inner-join size */
orig_selec = clause_selectivity(root, (Node *) join_or_rinfo,